Omnibus Election Code
Section 239. Watchers. - Each candidate, political party or coalition of political parties shall be entitled to appoint one watcher in the board of canvassers. The watcher shall have the right to be present at, and take note of, all the proceedings of the board of canvassers, to read the election returns without touching them, to file a protest against any irregularity in the election returns submitted, and to obtain from the board of canvassers a resolution thereon.